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47257044 = 2233938087
BaseRepresentation
bin1011010001000…
…1010111010100
310021220220110220
42310101113110
544044211134
64404514340
71112451432
oct264212724
9107826426
1047257044
1124747a0a
12139ab9b0
139a37a63
1463c1d52
154237149
hex2d115d4

47257044 has 12 divisors (see below), whose sum is σ = 110266464. Its totient is φ = 15752344.

The previous prime is 47257039. The next prime is 47257073. The reversal of 47257044 is 44075274.

It is a tau number, because it is divible by the number of its divisors (12).

It is a junction number, because it is equal to n+sod(n) for n = 47256996 and 47257014.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1969032 + ... + 1969055.

It is an arithmetic number, because the mean of its divisors is an integer number (9188872).

Almost surely, 247257044 is an apocalyptic number.

It is an amenable number.

47257044 is an abundant number, since it is smaller than the sum of its proper divisors (63009420).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

47257044 is a wasteful number, since it uses less digits than its factorization.

47257044 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3938094 (or 3938092 counting only the distinct ones).

The product of its (nonzero) digits is 31360, while the sum is 33.

The square root of 47257044 is about 6874.3758989453. The cubic root of 47257044 is about 361.5393038575.

The spelling of 47257044 in words is "forty-seven million, two hundred fifty-seven thousand, forty-four".

Divisors: 1 2 3 4 6 12 3938087 7876174 11814261 15752348 23628522 47257044